Machine for operating on heels.



H. w. KENWAY.

MACHINE FOR OPERATING 0N HEELS.

APPLICATION FILED SEPT. 3. l9l4.

Patented Dec. 5, 1916.

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a 0 O O Z] Willi /77\/ESSESL H. W. KENWAY.

MACHiNE FOR OPERATING 0N HEELS.

APPLICATION FILED SEPT-3| 1914.

Patented Dec. 5, 1916.

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pivrrn er ran HERBERT W. KENWAY, 0F NEWTON, MASSACHUSETTS, ASSIGNQR T0 UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR OPERATING 0N HEELS.

Specification of Letters Patent.

Patented Dec. 5, ilhllfi.

Continuation in part of application Serial No. 709,695, filed July 16, 1912. This application filed September 3, 1914. Serial No. 860,046.

To all whom it may concern.

Be it known that I, HERBERT W. KEN- WAY, a citizen of the United States, residing at Newton, in the county of Middlesex and State of li lassachusetts, have invented certain improvements in Machines for ()perating on Heels, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to heeling machines of the type in which the work is measured between two pressing members, such for instance as a shoe support and die plate, preliminarily to the application of an ad ditional pressure by power operated means.

In so far as it relates to common subjectmatter the present application constitutes a continuation of my prior application Serial No. 709,695, filed July 16, 1912.

in heeling shoes upon wooden lasts it is important that the pressure of engagement in the measuring operation should be invariably within predetermined limits, for, if this pressure is too light, the heel and the shoe will not be held securely in such intimate contact as is necessary to insure the production of a perfect joint between heel and heel seat by the attaching nails, and on the other hand, if this pressure is too great, the last may be broken down upon the application of the additional pressure which precedes the nail driving operation. I When the measuring ope 'ation depends upon the varying inclination and physical strength of the operator it is apparent that uniform results are out of the question. An important feature of the present invention, accordingly, consists in the provision of a novel form of measuring mechanism which shall work engaging members. In machines of the other type, of which that shown 1n Patent NoQd lQSSF), granted Feb. 24, 1891, to

J. H. Pope is agreed example, the measuring operation and the application of additional pressure are effected by moving one work engaging member by two successive steps toward a normally stationary cooperating work engaging member. In one of its aspects the present invention consists in mechanically operated measuring mechanism for a heeling machine of the latter type. To this end the invention contemplates the provision of a source of motive power or an actuator for the measuring mechanism which is arranged to be energized by power in each cycle of the machine and which may be rendered effective when it is desired to cause a preliminary movement of that work engaging member which is to be subsequently moved in applying an increased pressure to the work.

In the embodiment of the invention herein shown the ack is elevated toward the die plate in the measuring and pressing opnations, but it would not be without the scope of the invention to move the die plate toward the jack and in adapting the present invention to certain other types of heel ing machines this would be the arrangement.

It is important that the measuring operation should be efi'ected quickly when once initiated, and it is also important that the two work pressing members should be quickly separated at the conclusion of each cycle of the machine preparatory to the reception of new work. As herein shown the desired results are secured by providing a short train of mechanism between the actuating device of the measuring mechanism and the'movable work holding memher, the construction and arrangement being such that when the actuating device is energized at the conclusion of one cycle the same movement also effects separation of the work holding members. In the embodiment oi? the invention herein shown this separation is effected by moving the jack downwardly away from the die plate.

As another feature of the invention there is contemplated a single controlling device for initiating both the measuring operation and the power operation of the machine, said device being so arranged as to lnsure that the measuring operation has taken place before the machine is started. Where the controlling device comprises a treadle, as in the embodiment of the-invention herein shown, it sometimes happens that the operator will attempt to start the machine by kicking the treadle. 'Under these circumstances it might happen that the power movement of the machine, 1n which the attaching pressure is applied, would overtakeconsists in the provision of means under the control ofthe operator for temporarily separating the work engaging members after themeasuring operation has been effected. Occasion for this would arise in case it should be desired to correct or change the position of the parts of the work before they are permanently united by the attaching nails or otherwise operated upon. It is believed that this feature of the invention is broadly new and that no heeling machine of any kind has been heretofore provided with mechanically or automatically operated measuring mechanism in combination with manually operated means for separating the cooperating work-engaging members after the measuring operation has taken place.

In the normal operation of the machine herein disclosed the actuator for the meas uring mechanism isenergized by power as the last step in each cycle of the machine but, in order that the actuator may be energized by the operator preparatory to operating upon the first shoe, or in case it has been desired to remove a measured shoe from the machine without completing the attaching operation, the invention contemplates, as another important feature, the provision of manually operated auxiliary means for energizing the actuator for the measuring mechanism. In the machine herein shown the handle by which temporary separation of the work-engaging memhers is effected is so arranged as to accomplish this additional function when raised to the limit and, while the provision of a single device, suchas the handle for effecting both these purposes, presents a pre ferred mechanical construction, it should be understood that the two operations are distinct and need not necessarily be effected by the same means.

These-and other features of the invention will-be best understood and appreciated from the following description of a preferred embodiment thereof selected for purposes of illustration and shown in the accompanying drawings in which,-

Figure 1 is a view in front elevation showing the machine parts in their normal initial position; Fig. is a similar view showing the machine parts at the conclusion of the measuring operation; Fig. 3 is a view in perspective of the parts shown in Fig. 1; Fig. 'l is a view in side elevation of the tripping and starting mechanism, and Fig. 5 is a view in perspective of the same parts.

The machine frame 2 carries a stationary die plate a having a series of passages as shown in Fig. 3 for the drivers or awls which operate upon the heel. Beneath the die plate is located the jack 6 upon which the lasted shoe is placed preparatory to the operation of the machine, the heel being held in place upon the under side of the die plate by clamping devices 7. The driver gang 8 is mounted in a crosshead 10 carried at the upper ends of the two side rods 12 which are arranged to reciprocate in vertical hearings in the machine frame. Secured to the lower ends of the side rods is a second cross-head let to which motion is imparted from the main shaft 18 through an eccentric strap 16.

To the front portion of the machine frame 2 is secured a stationary block 20 above which is located the jack carriage support 22. The latter is arranged for a limited vertical movement in a vertical guideway formed partly in the machine frame and partly by the guide plates 23 bolted thereto. The support 22 and all the parts carried thereby, including the jack, are moved vertically by power driven means when the machine is started after the measuring operation has taken place. For this purpose a pair of eccentric cams are mounted one in the stationary block 20 and the other in the support 22. These are oscillated by connections with the side rods during the initial part of the downward movement of the rods. In the present drawings the connecting mechanism is omitted for the sake of clearness, being substantially the same as the corresponding mechanism disclosed in the patent to Pope above identified. 7

Above the jack carriage support 22 and, guided in the same ways as the latter is located the ack carriage 24-. The vertical position of the carriage is determined by a large screw 26 threaded into the carriage at its upper end and resting at its lower end upon the jack carriage support 22. The screw 26 is provided with elongated gear teeth which mesh with a transversely movable rack 28 by the actuation of which the measuring operation is effected, as will be presently described. The jack carriage 2a is formed at its upper side with substantially horizontal guideways in which slides the jack 6. It will be understood that the jack is pulled forwardly in the ways to receive a lasted shoe and then pushed rearwardly into operative position preliminarily to the operation of the machine.

A pair of springs 25 are secured at their upper ends to the stationary frame and at their lower ends to the jack carriage 24: at either side of the ways. The effect of these springs is to compensate partially for the weight of the jack carriage and jack and so render these parts more perfectly under the control of the measuring mechanism as will presently appear.

The mechanism thus far described is substantially similar to the corresponding parts of the well-known lightning nailing machine. The mechanism which constitutes one embodiment of the present invention will now be described. Broadly speaking this relates more particularly to mechanism whereby the measuring operation may be effected automatically and by power distinct from the physical force of the operator, together with mechanism for controlling the measuring operation and the starting of the machine.

As has been stated, the rotation of the screw 26 under the actuation of the rack 28 causes the elevation of the jack carriage 22 and brings the heel seat of the lasted shoe into engagement with the heel supported beneath the die plate. This rotation of the screw 26 is utilized to eifect the measuring operation which consists in bringing the two parts of the work into engagement and pressing them together with a predetermined measuring pressure independently ofthe thickness of thework or other conditions which are likely to vary in the manufacture of boots and shoes. The source of motive power for actuating the rack 28 in carrying out the measuring operation consists in a long tension spring 42 secured at its lower end to a part of the machine frame and at its upper end to a vertically movable bar to. The bar 40 is arranged for movement in a path substantially parallel to that of the side rods, being guided at its upper end in an opening formed in a sleeve 46 secured to the left hand side rod 12 and movable vertically therewith. Secured to the rear side of the bar 40 at its upper end is a plate 48 the lower end of which forms a shoulder or catch shaped to be engaged by a dog 52 pivotally mounted in the sleeve 46. In each cycle of the machine the side rods 12, and consequently thedog 52, are moved downwardly and then upwardly, the machine coming to rest with the sleeve 46 and the dog carried thereby in their uppermost position. In the upward movement of the side rods the dog 52 engages the catch on the bar 10 and lifts the bar in opposition to the tension of the spring 42 so that when the machine is at rest the spring 42 has been energized and the bar i0 is held in its uppermost position as shown in Figs. 4 and 5.

The lower end of the bar 40 is recessed longitudinally to receive a long pin 3% sun rounded by a compression spring 36 which bears against the under side of a pin 82 set in one arm of a bell crank lever 30 pivotally mounted at 31 upon the stationary block 20. The action of the spring 36 is to hold the pin 32 normally against the upper end of the slot in the bar i0, the construction being such that when the bar 4L0 is moved downwardly under the actuation of the spring 42 the lever 30 is swung positively in a contraclockwise direction while on the other hand when the bar 40 is drawn upwardly, as it is simultaneously with the upward movement of the side rods, the spring 36 will cushion the abrupt movement of the bar 40 and permit a momentary yielding between the bar 40 and the lever 30. This construction is important because if no lost motion is permitted the transverse movement of the rack 28 toward the right in response to the very rapid upward movement of the side rods would otherwise be so abrupt as to spin the screw 26, causing the latter to run up into the jack carriage before the carriage has time to drop. When this occurs the gear teeth on the screw 26 are elevated above the rack and remain out of mesh therewith or come into mesh in an improper relation. The downward movement of the jack carriage, it will be observed, is slightly retarded by the springs 25 which are arranged to compensate somewhat for the weight of these parts. However, the provision of the yielding connection formed by the spring has been found to obviate entirely the difiiculty above discussed and prevent the possibility of disengagement between the rack 28 and the screw 26.

The bell crank lever 30 is arranged with one arm substantially vertically beneath the opening in the sleeve 46 which guides the upper end of the bar 40 so that the lower end of the bar is guided in a path which departs somewhat, but only slightly, from the verti cal. The action of the spring 42 is therefore transmitted to the bell crank lever" 30 in a substantially vertical direction. In order to limit the movement of the lever 30 in case the dog 52 should be tripped when no work is in the machine a stop pin 21 is set in the stationary block 20 and is arranged to be engaged by a downwardly extending pro jection on the lever 30 as shown in Fig. 2. An oppositely disposed spring buffer pin 33 is mounted in a boss on the lever 30 to cushion the return movement of the lever to its initial position. Connection between the upper end of the lever 30 and the rack 28 is afforded by a short link 29.

The mechanism for tripping the dog 52 to initiate the measuring operation will now be described. The dog 52 is pivotally mounted in the sleeve 46 which has guideways for the sliding trip piece .56 connected to the upper end of the dog 52 by-the pin 54 as shown in Fig. 5. At its rear end the trip- .ping piece 56 carries a transverse pin 66' which extends on both sides of the piece. When the sleeve 46 is in its upper position the rear end of the tripping piece 56 is so located that the pin 66 stands in the path of movement of a flattened striking piece 64 set in the yoke-shaped casting 62. This casting or yoke piece is journaled for limited movement upon a transverse shaft 60 set in .the machine frame and is arranged to be swung by a controlling lever 70. The lever 7 0 extends toward the front of the machine where it is connected through a treadle rod 72 to a treadle 71, being maintained normallyin elevated position by a spring 74. When the treadle is depressed the yoke piece 62 is swung in a clockwise direction and the striking piece 64 encounters the pin 66, drawing the tripping piece 56 rearwardly and disengaging the dog 52 from the catch on the bar 40. The latter thereupon moves from the present drawings for the sake of clearness since they are substantially identical with the corresponding parts of the machine disclosed in the patent to Pope above identified.

Turning of 'the shaft 60 to start the machine is produced by a further depression of thetreadle after the latter has'been moved sufliciently to trip the dog 52 and initiate the measuring operation. To this end there is rigidly secured to the shaft 60 between the two branches of the yoke piece 62 a collar 57 cut away atits lower side as shown in Fig. 5 and carrying a pin 68' arranged to stand in the path of the inner end of the pin 66in the tripping piece 56. The relation of these parts is such that further turning of the yoke piece 62 after the dog 52'has been tripped carries the pin 66against the pin 68 turning the collar 57 and thereby the shaft 60. The collar 57'is yieldingly connected to the yoke piece 62 through a pin and spring 63 by which these two parts are restored'to' initial relative position as soon as the treadle is released.

In order to insure that the measuring operation shall be completed before the machine is set in operation there is provided a projection 50 upon the rear side of the bar 40 which is arranged to stand in the path of the lower end of the dog 52 and to prevent the dog from being moved sufiiciently to permit turning of the shaft 60 until the bar 40 has been moved downwardly as it is in the measuring operation.

It occasionally happens that the operator desires to release the work after the measuring operation has taken place in order to correct the relative position of the heel and the heel seat or for some other purpose. In order that this may be done an outwardly projecting handle 44 is secured to the actuating bar 40 and thus convenient means for lifting the bar is provided. By referring to Fig. 2 it will be apparent that in lifting this handle 44 the operator will swing the lever 30 in a clockwise direction and rotate the screw 26 reversely to lower the jack, thus separating parts of the work. lVhen the handle 44 is released the spring 42 immediately acts again to elevate the jack and remeasure the work.

.The handle 44 has another function; namely, that of resetting the actuating spring 42 in case it should be found necessary to do this without starting the machine. When the bar 40 is lifted suilieiently by the handle 44 to carry the catch plate 48 above the dog 52 the latter will hold the bar in its elevated position with the spring 42 stretched.

In operating the machine above described the heel and lasted shoe are placed in position and nails supplied to the passages in the die plate 4. The operator then depresses the treadle 71, the initial movement of which trips the dog 52 allowing the bar 40 to move downwardly and the measuring operation to take place. After this has occurred further depression of the treadle rocks the sleeve 5'? and the starting shaft 60 throwing the main clutch and starting the machine in motion. The cross-head 10 immediately descends and during the first part of its movement the jack carriage support is elevated by the cams 19 to apply a further or attaching pressure to the work after which the drivers encounter the nails in the passages and drive them through the heel into the heel seat of the shoe. In this downward movement of the cross-head the left hand side rod carries the dog 52 downwardly beneath the lower end of the catch plate 48 on the bar 40 so that in the onward movement of the crosshead and side rods, which takes place immediately the bar 40 is lifted, the spring 42 stretched, the jack lowered and all parts of the machine returned to their initial position as shown in Figs. 1 and 3. The depression of the treadle is intended to take place as a single continuous movement so that the start ing of the machine follows immediately upon the completion of the measuring operation. As already explained, the locking projection 50 on the bar 40 prevents starting of the machine prior to the completion of the measuring operation, its effect being to delay slightly the movement of the treadle in case the operator attempted to depress it abruptly.

The term mechanically actuated is used herein to designate the actuation of mechanism from a source of power included in the machine and distinct from the physical force of the operator.

Having thus described my invention, I claim as new and desire to secure by Letters Patent of the United States:

1. A machine for operating on heels having, in combination, relatively movable die plate and jack, mechanically actuated means for moving the jack to measure the work, power operated means for applying pressure to the measured work, and a single controlling device for both of said means constructed and arranged to prevent the power operated means'from being started before the measuring operation has taken place.

2. A machine for operating on heels having, in combination, relatively movable die plate and work support, spring actuated mechanism for moving the support to measure the work with a predetermined degree of pressure, power driven means for applying pressure to the measured work, and a controlling device for the power driven means constructed and arranged to be locked against starting movement until the measuring operation has been completed.

3. A machine for operating on heels, having in combination, relatively movable die plate and work support, power driven means for applying pressure to work between the die plate and support, a. starting device therefor, and automatically acting measuring mechanism constructed and arranged to be set in operation by said starting device and having a movable part for preventing movement thereof for starting the power driven means prior to the measuring operation. v

A. A machine for operating on heels hav ing, in combination, a die plate, a work support movable relatively thereto, first yieldingly and then positively, independent sources of motive power for automatically effecting each of said movements, and a single controlling device for successively initiating both of said movements.

5. A machine for operating on heels having, in combination, a die plate, a work sup port, independent sources of motive power, one for moving the support yieldingly and the other for moving the support positively,

and a single controlling device for rendering effective first one and then the other source of power.

6. A machine for operating on heels having, in combination, a die plate and jack one of which is movable relatively to the other first to measure the work and then again in the same direction to subject it to a further pressure, mechanically actuated means under manual control for bringing about the relative movement of the jack and die plate to measure the work with a uniform degree of pressure, and power operated means for producing a further relative movement of the jack and die plate to impart the further pressure to the work.

7. A machine for operating on heels having, in combination, a die plate, a jack carriage guided for movement toward and from the die plate, a jack mounted in the jack carriage, an actuator arranged to be energized in each cycle of the machine and having connections with the jack carriage, manually controlled means for renderingthe ac tuator effective to move the carriage and jacktoward the die plate to measure the work with a uniform pressure, and power operated means for moving the carriage and jack farther in the same direction to subject the work to a further pressure.

8. A machine for operating on heels having, in combination, stationary and movable work engaging members, a power driven gang of tools for operating on the work held by said members, an actuator arranged to be completely energized by the power of the machine during the movement of the tools in one direction, and manually controlled means for causing the actuator to move the movable engaging member to clamp the work with a uniform pressure.

9. A machine for operating on heels having, in combination, a stationary die plate, a relatively movable work engaging member, nail drivers, an actuator for producing clamping movement of the work engaging member, and power operated mechanism for simultaneously energizing the actuator, separating the work engaging members and moving the drivers into position remote from the work.

10. A machine for operating on heels having, in combination, relatively movable work engaging members, an actuator for one of said members arranged to be energized during each cycle of the machine, and a transmitting member arranged to be moved by the actuator and having a connection with the latter work engaging member for moving said member in a positive manner in one direction and in a yielding manner in the other direction.

11. A machine for operating on heels having, in combination, relatively movable work engaging members, an actuator associated with' one of said members arranged to be energized by-power during each cycle beffore' the machine comes to rest, an auxiliary V manually operateddevlce for energlzmg the; actuator, and means for maintaining the actuat'or in energized'condition.

R 12. A machine for operating on heels hav-V in in combination, relatively "movable work engaging members, mechanically operated measuring mechanism connected with one of-said member's,'an actuator for the measuring mechanism arranged to be energized normally by power during each cycle of the machine and to remain in. an

energized condition when the machine comes to rest, and an auxlllary manually operated 1 device constructed and arranged to separate the work engaging members and'also to energize the actuator in case it is deenergized before the maclnne has been started.

13. A machme of the class descr bed having, in combination, nail driving mechanism,

machine and in the other direction by separate means, and connections between said element and its associated pressing member arranged to yield during thefirst mentioned movement of said element.

15. A machine for operating on heels hav- 7 ing, in combination, reciprocating side rods,

a gang of tools carried thereby, a die plate, a movable jack, a spring arranged to be placed under tension by the movement in one direction of a side rod, and means for tripping the spring for moving the jack to eflect'the measuring operation independently of'the movement of the side rod. 7

f 16. A machine for operating on heels, having, in combination, a movable work support, and measuring mechanism including a bar longitudinally movable in a substantially vertical path parallel to the path of the work support, an actuating spring attached to the bar, power driven means to move the bar to a predetermined position :7 for uniformly energizing the spring, conport, and ,a manually nections between the bar and the work supcontrolled tripping device to release the bar i 17'. A machine for operating on heels, having, in combination, a movable work support, and 'measuring mechanism including a bar, connections between the bar and support arranged to insure movements in opposite'directions of the bar and support, an actuating spring for the bar, power driven means to energize the spring uniformly independently of the thickness of the work, and a manually controlled tripping device to release the bar.

18, A machine for operating on heels having, in combination, a movable work support, and measuring mechanism including a spring arranged to be energized by power, a jack movable in a path substantially at right angles to the line of action of the spring, a screw operated by the rack, and a lever all interposed between the spring and the work support and ar 'anged to be moved by the spring until arrested by the work.

19. A machine'for operating on heels having, in combination a movable work support, and measuring mechanism including a rack, an operating lever therefor, and a spring operated actuator constructed and arranged to act in a rectilinear path, said operating lever being arranged initially with one arm standing substantially in line with the path of movement of the actuator.

20. A machine for operating on heels having, in combination, a movable work support, a spring operated actuator for moving the support to measure the work, a latching device, a handle carried by the actuator whereby the latter may be returned by the operator to initial position and latched after the normal measuring movement, and tripping mechanism for the latch.

21. A machine for operating on heels ha ving, in combination, relatively movable work support and die plate, automatic measuring mechanism including a swinging lever, for moving one of said members, and a stop disposed in the path of the lever for limiting the movement of the measuring mechanism when no work is in the machine.

22. A machine for operating on heels having, in combination, a vertically movable work support, a spring tending at all times to neutralize the weight of the support, and

an automatic measuring mechanism for lifting the support.

23. A machine for operating on heels having, in combination, a stationary frame, a jack movable therein to measure the work, springs whereby the jack is partially suspended, and f spring actuated measuring mechanism for lifting the jack.

9A. A machine for operating on heels having, in combination, reciprocating side rods,

an associated gang of tools, relatively movable work clamping members, and a spring arranged to be connected to one side rod and placed under tension by the movement of the side rods and to be subsequently disconnected from the side rod and so rendered effective for measuring the work between said clampi g mem rs.-

25. A machine for operating upon heels, having, in combination, reciprocatory side rods, a tool carrying cross head mounted thereon, relatively movable Work clamping members, and automatic measuring mechanism arranged to be energized by the movement of one of said side rods.

26. A machine for operating upon heels, having, in combination, reciprocatory side rods, an associated gang of tools, relatively movable work clamping members, and automatic measuring mechanism including a spring constructed and arranged to be automatically connected to one of said side rods, and means for tripping said spring.

27. A machine for operating upon heels, having, in combination, reciprocatory side rods, relatively movable jack and die plate, and automatic mechanism for moving the jack toward the die plate, comprising a rack movable transversely with respect to the side rods, and connections between the rack and one of the side rods for moving the rack to one limit of its path and latching the rack under spring tension in such position.

A heeling machine having a jack, a die plate, and an actuating element connected to the jack and arranged to be moved in one direction by the power of the machine and in the other direction by a spring, the connections between the element and the jack being arranged to yield during the power movement of the element.

A machine for operating on heels, having, in combination, a die plate, reciprocatory side rods, a jack disposed between the side rods, and automatic measuring mechanism including a rack movable beneath the jack, and an actuator therefor arranged to be temporarily connected to and energized by one of the side rods.

30. A machine for operating on heels, having, in combination, a die plate, a rela tively movable jack, and automatic measuring mechanism including a spring actuating member having a catch, a bodily movable dog for engaging the catch and moving the spring actuating member to energize it, and a controlling device disposed in operative relation to the dog when in initial position for moving the dog from the spring actuating member.

81. A machine for operating on heels, having, in combination, a die plate, a jack,

and automatic measuring mechanism including a spring actuating member, mechanism including a pivotally mounted dog for engaging and moving the spring actuating member to energize it, and treadle controlled starting mechanism arranged first to move the dog and then to start the machine.

82. A heeling machine having, in combination, cooperating work engaging members one of which is movable in a substantially vertical path to measure the work, a springvtending at all times to neutralize the weight of said member, and automatic measuring mechanism arranged to act upon said movable member.

33. A machine for operating on heels, having, in combination, a die plate, a cross head carrying drivers, reciprocatory side rods connected to the cross head, and automatic measuring mechanism including a spring actuated bar, and a sleeve secured permanently to one of the side rods and carrying a dog arranged to engage automatically with the bar and to be disengaged by the operator.

34. A heeling machine having, in combination, a cross head carrying drivers, reciprocating side rods, a sleeve secured to one of the side rods and having an opening therein substantially parallel to the side rod, a dog mounted in the sleeve, and an actuating bar arranged to pass through the opening in the sleeve and to be engaged by the dog during a portion of the movement of the side rod.

35. A heeling machine having, in combi nation, a movable work engaging member, a reciprocatory actuating bar carrying a spring, and a lever interposedbetween the bar and member, said lever being moved in one direction through the medium of the spring.

36. A heeling machine having, in combination, a movable work engaging member, a screw rotatable for moving said member to engage the work, and power operated means for turning the screw to retract said member including a yielding connection for retarding the rotation of the screw.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HERBERT VJ. KENVVAY. lVitnesses FRED W. GUIBORD, ARTHUR L. RUSSELL,

Gopies of thispatent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. U. 

